Answer:
Acceleration = 0.5 meters per second square
Step-by-step explanation:
By Newton's second law of motion,
F = ma
Here, F = force exerted by runner
m = mass of the runner
a = Acceleration due to force applied on the mass
By applying values given in the question,
50 = 100a
a = \(\frac{50}{100}\)
a = 0.5 meters per second square
Therefore, acceleration due to force exerted is 0.5 m per second square
x = 7
To isolate x, always do the opposite of the number next to it.
5x = 35
The opposite of "× 5" is "÷ 5," so we ÷ 5 on both sides
5x = 35
5x ÷ 5 = 35 ÷ 5
x = 7 How do you solve an equation like: 5x = 35
Answer:
opposite operation
Step-by-step explanation:
divide 35 by 5 so x=7
: Suppose a dog house manufacturer sells two types of dog houses. Let x represent the demand for the deluxe dog house, in thousands, and y represent the demand for the regular dog house, in thousands. If the price-demand functions for the two dog houses respectively are P1 = 8.6 – 0.4x – 0.ly P2 = 8.6 – 0.13 – 0.7y a) What is the equation of the revenue function ? R(x,y)= b) What is the revenue when the demand for deluxe dog houses is 3 and regular dog houses is 9? thousand dollars
a. The equation of the revenue function is R(x,y) = 8.6x - 0.4x² - 0.1xy + 8.6y - 0.13xy - 0.7y²
b. The revenue when the demand for deluxe dog houses is 3 and regular dog houses is 9, is $122,290
a) The revenue function can be obtained by multiplying the price and demand for each type of dog house and then adding them up. Therefore, the revenue function is:
R(x,y) = (8.6 - 0.4x - 0.1y)x + (8.6 - 0.13x - 0.7y)y
Simplifying and collecting like terms, we get:
R(x,y) = 8.6x - 0.4x² - 0.1xy + 8.6y - 0.13xy - 0.7y²
b) To find the revenue when the demand for deluxe dog houses is 3 and regular dog houses is 9, we substitute x = 3 and y = 9 into the revenue function:
R(3,9) = 8.6(3) - 0.4(3)² - 0.1(3)(9) + 8.6(9) - 0.13(3)(9) - 0.7(9)²
Simplifying and calculating, we get:
R(3,9) = $122.29 thousand
Therefore, the revenue is approximately $122,290 when the demand for deluxe dog houses is 3 and regular dog houses is 9, in thousands of dollars.
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The three angles below are supplementary. Use the Angle Addition Postulate to solve for X.
Answer:
5x+4+x-2+3x+7=9x+9=180,x+1=20,x=19
Step-by-step explanation:
Answer:
x = 19
Step-by-step explanation:
The 3 angles are supplementary and sum to 180°
Sum the 3 angles and equate to 180
5x + 4 + x - 2 + 3x + 7 = 180 , that is
9x + 9 = 180 ( subtract 9 from both sides )
9x = 171 ( divide both sides by 9 )
x = 19
find sin(a) in the triangle
Answer:
sin (a) = 12/37Step-by-step explanation:
sin ∅ = opposite / hypotenuse
From the question
the hypotenuse is 37
the opposite is 12
So we have
sin (a) = 12/37
Hope this helps you
There are 75 kids at camp. After 21 kids go swimming, a counselor separated the remaining kids into 6 teams so that each team had k kids. In the tape diagram, k represents the number of kids that the counselor put into each of the 6 teams. What is the value of k?
Which of the following expenses is not a variable cost?
a.
sales commission
b.
hourly wages
c.
rent
d.
materials
The sloped roof of a house that is right beside its property line can be represented by the inequality −|x − 2| + 9 > 6. Solve and graph the solutions of the inequality to show the horizontal position of the roof, relative to the property line. THIS IS A WHOOLE LOT A POINTS, PLEASE ANSWER.
Answer:
This Is CORRECT
Step-by-step explanation:
Answer:
Step-by-step explanation:
7/2 slope
just took the test
750 is what percent of 600?
How many solutions does 5(x+9)=5x+45 have
Answer:
Simplifying
5(x + 9) = 5x + 45
Reorder the terms:
5(9 + x) = 5x + 45
(9 * 5 + x * 5) = 5x + 45
(45 + 5x) = 5x + 45
Reorder the terms:
45 + 5x = 45 + 5x
Add '-45' to each side of the equation.
45 + -45 + 5x = 45 + -45 + 5x
Combine like terms: 45 + -45 = 0
0 + 5x = 45 + -45 + 5x
5x = 45 + -45 + 5x
Combine like terms: 45 + -45 = 0
5x = 0 + 5x
5x = 5x
Add '-5x' to each side of the equation.
5x + -5x = 5x + -5x
Combine like terms: 5x + -5x = 0
0 = 5x + -5x
Combine like terms: 5x + -5x = 0
0 = 0
Solving
0 = 0
Couldn't find a variable to solve for.
This equation is an identity, all real numbers are solutions
Step-by-step explanation:
11x-y=21
9x+2y=-11
solving by subtitution plss help
Can someone help me with the picture in the question?- i tried doing it but it was wrong
Answer:
\(1\frac{2}{3}\)
5x\(\frac{1}{3}\)= \(\frac{5}{3}\)= \(1\frac{2}{3}\)
Step-by-step explanation:
the width is 1/3, so 3 squares make up one whole square and 5-3=2.
So, the answer is \(1\frac{2}{3}\). because there are 2 more 1/3 squares left
Evaluate the following integral using integration by parts. 4 sin-1 4 sin - ¹2x dx [4 sin -¹2x dx =
The complete solution is:
∫4\(sin^{-1}(2x) dx = sin^{-1}(2x)\) x 4x + √(1 - (2x)²) + C, where C is the constant of integration.
We have,
\(u = sin^{-1)}(2x)\)
dv = 4 dx
Taking the derivative of u, we get:
du/dx = 1 / √(1 - (2x)²)
Integrating dv, we get:
v = ∫4 dx = 4x
Now, applying the integration by parts formula:
∫4 \(sin^{-1}(2x) dx\) = uv - ∫vdu
Plugging in the values, we have:
∫4 \(sin^{-})(2x) dx = sin^{-1}(2x) \times\) 4x - ∫(4x / √(1 - (2x)²)) dx
At this point, we need to evaluate the integral on the right side.
Let's perform a substitution to simplify it:
Let u = 1 - (2x)²
Differentiating u with respect to x, we get:
du/dx = -4(2x) = -8x
Solving for dx, we have:
dx = -du / (8x)
Substituting these values, the integral becomes:
∫(4x / √(1 - (2x)²)) dx = ∫(-4x / (8x x √u)) (-du / (8x))
Simplifying, we get:
∫(4x / √(1 - (2x)²)) dx = ∫(-1 / (2√u)) du
= -∫(1 / (2√u)) du
= -√u + C
Substituting back the value of u, we have:
∫(4x / √(1 - (2x)²)) dx = -√(1 - (2x)²) + C
Therefore,
The complete solution is:
∫4\(sin^{-1}(2x) dx = sin^{-1}(2x)\) x 4x + √(1 - (2x)²) + C, where C is the constant of integration.
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The complete question:
a) Evaluate the integral ∫4 sin^(-1)(2x) dx using integration by parts.
What is the approximate area of a circle with a diameter of 16 cm? Round to the nearest hundredth.
Use
3.14
Answer:
201.06
Step-by-step explanation:
HELP PLEASE!!! NOW :(
If Wendy answered 14 questions correctly and obtained 70%, how many questions were on the test?questions
Let x be the total number of questions on the test; then,
\(\begin{gathered} 14\to70\% \\ x\to100\% \end{gathered}\)Which is equivalent to
\(\Rightarrow\frac{14}{70}=\frac{x}{100}\)Solve for x as shown below
\(\begin{gathered} \Rightarrow x=\frac{14\cdot100}{70}=20 \\ \Rightarrow x=20 \end{gathered}\)The answer is 20 questions in total on the test
consider the quadratic function y equals short dash x squared plus 6 x minus 5. what do we know about the graph of this quadratic equation, based on its formula?
Based on the formula of the quadratic function y=-x^2+6x-5, we know that its graph is a downward-facing parabola that opens wide, with a vertex at (3,-14), and an axis of symmetry at x=3.
Based on the formula of the quadratic function y=-x^2+6x-5, we can determine several properties of its graph, including its shape, vertex, and axis of symmetry.
First, the negative coefficient of the x-squared term (-1) tells us that the graph will be a downward-facing parabola. The leading coefficient also tells us whether the parabola is narrow or wide. Since the coefficient is -1, the parabola will be wide.
Next, we can find the vertex using the formula:
Vertex = (-b/2a, f(-b/2a))
where a is the coefficient of the x-squared term, b is the coefficient of the x term, and f(x) is the quadratic function. Plugging in the values for our function, we get:
Vertex = (-b/2a, f(-b/2a))
= (-6/(2*-1), f(6/(2*-1)))
= (3, -14)
So the vertex of the parabola is at the point (3,-14).
Finally, we know that the axis of symmetry is a vertical line passing through the vertex. In this case, it is the line x=3.
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16. If the interest on a note for 7 months is $34, what would be the interest on the same note for 15 months?
The equation represented by the table
Answer:
A. y= -3x - 1
that's the answer of you substitute the figures in x into where x can be located in A
2/5 in Fraction form?
Answer:
2/5 is fraction form.
0.4 is decimal form btw.
The difference of one half a number x and 3 is 14
Answer:
x = 36
Step-by-step explanation:
You can write this equation to represent this problem:
\(\frac{1}{2}x-3=14\)
Then, just solve for x:
\(\frac{1}{2}x=14+3\\\frac{1}{2}x=17\\x=36\)
If QRS is dilated by a scale factor of 6 through the origin, which of the following points represent the coordinates of R'?
A.
(-12,-24)
B.
(12,24)
C.
(-24,-12)
D.
(24,12)
Answer:
C
Step-by-step explanation:
The dilated point R' of the given point will be (-12,-24). The correct option is A.
What is dilation?Dilation is the process of increasing the size of an object while maintaining its shape. Depending on the scale factor, the object's size can be increased or decreased.
Given that If QRS is dilated by a scale factor of 6 through the origin, the coordinate will be calculated as:-
The dilation factor is 6 then multiply the coordinates of R by 6 to calculate the value of dilated coordinate.
( -2 , -4) ⇒ Dilated ( -2 x 6 , -4 x 6 )
( -2 , -4 ) ⇒ Dilated ( -12, -24 )
Therefore, the dilated point R' of the given point will be (-12,-24). The correct option is A.
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Historically, the members of the chess club have had an average height of 5
′
6
′′
with a standarid deviation of 2
′′
. What is the probability of a player being between 5
′
3
′′
and 5' 10"? (Submit your answer as a whole number. For example if you calculate 0.653 (or 65.3% ), enter 65. )
Previous question
Answer:
The answer is 91
since, The Probability is P(5'3" < X < 5'10") = 91%
Step-by-step explanation:
We assume that the heights follow a normal distribution such that we can use the z-table
Mean = M = 5'6" = 66"
Standard Deviation = S = 2"
We have to find the probability for 5'3" = 60 + 3 = 63" and 5'10" = 60 + 10 = 70" and then subtract them to get the probability of being in between.
To find the probability, we have to find the z-score and then look up the value corresponding to it to get the probability
for 5'3"
P(X < 5'3"),
Calculating the z-score,
z = (x - M)/S
z = (63 - 66)/2
z = -3/2
z = -1.5
Finding the value,
= 0.0668
So,
P(X < 5'3") = 0.0668
for 5'10"
P(X < 5'10"),
Calculating the z score,
z = (x - M)/S
z = (70 - 66)/2
z = 4/2
z = 2
And looking up the corresponding value we get,
= 0.9772
P(X < 5'10") = 0.9772
The probability in between is then,
P(5'3" < X < 5'10") = P(X < 5'10") - P(X < 5'3")
= 0.9772 - 0.0668 = 0.9104
so,
P(5'3" < X < 5'10") = 0.9104 = 91.04%
For whole number,
P(5'3" < X < 5'10") = 91%
Proofs- prove: BD≅ BF
Note that the missing statement which concludes the proof that BD≅ BF is the Subtraction Property of equality.
What is Subtraction Property of equality?
The Subtraction Property of equality in geometry states that if a = b, then a - c = b - c. In other words, subtracting the same value from both sides of an equation maintains equality.
Since the following have been given:
AG ≅ EC, this means
AE ≅ GC, especially because
AC ⊥ FG and
AC ⊥ DE. Straight lines from the same distance apart means that they both lines are equidistant from each other; and that
the points where they intersect line AB and BC respectively are also equidistant to each other.
Since
AD ≅ CE
Therefore
BD≅ BF.
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Which is the greatest measure of the given data? 4, 8, 4, 7, 5, 4, 9, 146, 6, 4, 13, 8, 11, 6, 6, 5 *
1.Mean
2.Central Tendency
3.Median
4.Mode
Answer:
Don't copy that link it will hack you.
Step-by-step explanation:
But the answer is 3. Median the median is 146.
Mode is 142
Mean is 146
3. The decimal expansion of 13/625 will terminate
after how many places of decimal?
(a) 1
(b) 2
(c) 3
(d) 4
The decimal expansion of the given fraction is 0.0208. Therefore, the correct answer is option D.
The given fraction is 13/625.
Decimals are one of the types of numbers, which has a whole number and the fractional part separated by a decimal point.
Here, the decimal expansion is 13/625 = 0.0208
So, the number of places of decimal are 4.
Therefore, the correct answer is option D.
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The point P(x, y) is on the terminal ray of angle theta. If theta is between pi and 3pi/2 radians and csc theta equals -5/2 what are the coordinates of P(x, y)?
Answer:
(-4.58, -2)
Step-by-step explanation:
\(\theta $ is in between \pi$ and $\frac{3\pi}{2}$ radians \\Therefore, \theta$ is in Quadrant III\\If \csc \theta = -\dfrac{5}{2}$ and cosec \theta = \dfrac{Hypotenuse}{Opposite} \\ $Therefore:\\Hypotenuse = 5\\Opposite $=-2\)
Using Pythagoras Theorem
\(5^2=(-2)^2+ x^2\\25=4+x^2\\x^2=21\\x=\sqrt{21} \approx 4.58\)
Since the angle is in the third Quadrant, Adjacent = -4.58.
Therefore, the coordinates of P(x,y) is (-4.58, -2)
Answer: a
Step-by-step explanation: edge 2021
1) Which expression is equivalent to 4 - (-7)?A 7 + 4B 4 - 7C-7-4D - 4 + 7
Answer:
\(4-(-7)=7+4\)Explanation:
Given the expression;
\(4-(-7)\)simplifying;
\(-\times-=+\)we have;
\(4+7=7+4\)Therefore;
\(4-(-7)=7+4\)Present Value for Various Compounding Periods
Find the present value of $425 due in the future under each of the following conditions. Do not round intermediate calculations. Round your answers to the nearest cent.
6% nominal rate, semiannual compounding, discounted back 5 years
$
6% nominal rate, quarterly compounding, discounted back 5 years
$
6% nominal rate, monthly compounding, discounted back 1 year
$
The present value of $425 due in the future under each of the given conditions are as follows 1. $425 due in 5 years, with a 6% nominal rate and semiannual compounding: $314.92
How is the present value calculated for a 6% nominal rate with semiannual compounding and a 5-year time period?To calculate the present value, we use the formula for the present value of a future amount with compound interest:
\(\[PV = \dfrac{FV}{(1 + r/n)^{nt}}\]\)
Where:
PV = Present Value
FV = Future Value
r = Nominal interest rate (in decimal form)
n = Number of compounding periods per year
t = Number of years
In this case, the future value is $425, the nominal interest rate is 6% (0.06 in decimal form), the compounding is semiannual (n = 2), and the time period is 5 years. Plugging these values into the formula, we get:
\(\[PV = \dfrac{425}{(1 + 0.06/2)^{(2 \times 5)}} = 314.92\]\)
Therefore, the present value of $425 due in 5 years, with a 6% nominal rate and semiannual compounding, is $314.92.
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Many sample surveys use well-designed random samples, but half or more of the original sample can't be contacted or refuse to take part. Any errors due to this nonresponse (a) have no effect on the accuracy of confidence intervals. (b) are included in the announced margin of error. (c) are in addition to the random variation ac- counted for by the announced margin of error.
Option (c) Nonresponse in sample surveys is in addition to the random variation accounted for by the announced margin of error.
Nonresponse in sample surveys can introduce potential biases and affect the accuracy of the survey results. The impact of nonresponse on confidence intervals depends on how the missing data is handled and the underlying assumptions made.
Option (a) suggests that nonresponse has no effect on the accuracy of confidence intervals. However, this is not accurate because nonresponse can introduce biases and potentially affect the representativeness of the sample.
Option (b) states that nonresponse is included in the announced margin of error. This approach acknowledges that nonresponse can introduce uncertainty and affect the precision of the survey estimates. The announced margin of error typically accounts for random variation, but it may not fully capture the potential biases introduced by nonresponse.
Option (c) indicates that nonresponse is in addition to the random variation accounted for by the announced margin of error. This acknowledges that nonresponse introduces additional sources of variability beyond the random variation captured by the margin of error. It recognizes that nonresponse can impact the accuracy and reliability of the survey results.
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Which statement best defines an angle?
A.
two lines that share a common line segment called the vertex
B.
two rays that share a common endpoint called the vertex
C.
two line segments that intersect at a point called the vertex
D.
two lines that intersect at a point called the vertex
The correct statement for the best definition of an angle is,
''two rays that share a common endpoint called the vertex''.
Option B is true.
What is mean by angle?
A figure which is formed by two rays or lines that shares a common endpoint is called an angle.
Given that;
Define an angle with the help of definition.
Now,
Since, We know that;
A figure which is formed by two rays that shares a common endpoint vertex is called an angle.
Thus, the best definition of an angle is,
''two rays that share a common endpoint called the vertex''.
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